Possible heading
Lorem ipsum dolor sit amet, foo bar HTML_CodeSniffer nonummy est.
According to Success Criterion 1.3.1 (Info and Relationships), authors should use semantic markup wherever possible.
This includes usage of heading level elements (h1 to h6) when content is intended to be a heading. Where bolded or italicised text is the only content in a paragraph, HTML_CodeSniffer will throw this warning, flagging a heading that may have been marked using certain tags (eg. strong, em, b, i) instead of a heading element.